14747981 has 2 divisors, whose sum is σ = 14747982. Its totient is φ = 14747980.

The previous prime is 14747951. The next prime is 14747983. The reversal of 14747981 is 18974741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 872356 = 3725^2 + 934^2 .

It is an emirp because it is prime and its reverse (18974741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14747981 - 2¹⁰ = 14746957 is a prime.

It is a super-2 number, since 2×14747981² = 435005887152722, which contains 22 as substring.

Together with 14747983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14747983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7373990 + 7373991.

It is an arithmetic number, because the mean of its divisors is an integer number (7373991).

Almost surely, 2^14747981 is an apocalyptic number.

It is an amenable number.

14747981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14747981 is an equidigital number, since it uses as much as digits as its factorization.

14747981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 41.

The square root of 14747981 is about 3840.3100135276. The cubic root of 14747981 is about 245.2322163156.

The spelling of 14747981 in words is "fourteen million, seven hundred forty-seven thousand, nine hundred eighty-one".